Feeder for bucket loaders



Aug. 4, 1931. H. H. BARBER 1,817,474

FEEDER FOR BUCKET LOADERS Filed Oct. 7, 1929 2 Sheets-Sheet l forreceiving an operating shaft 3 which is and the spider 2a will rotatetherewith, carry- Patented Aug. 4,1931 7 i I i UNITED STATES ATE TOFF-1GB} HARRY H. BARBER, OI AURORA, ILLINOIS, ASSIGNOR 13ARBERGREENECOMPANY,

A CORPORATION OF ILLINOIS h FEEDER FOR nucign'r LoAnnRs Applicationfiled October 7, 1929. Serial No. 397,912. I

This invention relates to feeding mechakeyed to the hub 26 as indicatedat 4. The nism for bucket loader of the type found in shaft 3 carries abeveled gear 5 which is'sethe Barber Patent N 0. 1,630,598. curedthereto, and this beveled gear 5 meshes It is an object of thisinvention to improve with a beveled driving pinion 6 which is 5 the typeof feeder shown in the above menkeyed upon the end of a shaft 7journalled tioned patent so that the bucket may be more in a housing 8which is provided with a bear quickly and effectively filled. Accordingto ing hub 8a which surrounds the shaft 3. The this invention, this isaccomplished by the shaft 7 carries a sprocket wheel 9 whereby use ofrotatable drum with reciprocating the shaft 7 may be rotated. It mightbe 10 paddles for carrying the material to the mentioned that the shaft7 extends to the bucket and which recede at the proper time othercooperating feeding mechanism. 1 in order to pass by the buckets as thedrums The drum 2 is provided with two pairs of rotate. V diametricallyopposite slots 10 as shown The invention comprises the novel strucmoreclearly in Figure 3; Suitable feeding ture and combination of partshereinafter paddles 11 are mounted, as will hereafter be described andmore particularly pointed out more fully explained, for reciprocatingand defined in the appended claims. movement through the slots. One pairof In the accompanying drawings which illusdiametrically oppositepaddles is. connected" trate a preferred'form of this invention and by anarrower strip 153 as shown in Figure 2, a

26 in which similar reference numerals refer to while the other pair ofdiametrically opposimilar features in the different views: site paddles11 is connected by a narrower Figure 1 is a fragmentary elevational viewstrip 13 which is positioned above the strip 12 of a bucket loaderillustrating the improved whereby these paddles may'reciprocatewithfeeding mechanism therefor. out interfering'with each other. I A

Figure 2 is an enlarged vertical sectional The above mentioned'spider 2ais provided view taken upon the line II-II of Figure with a pair ofdepending bearing sleeves 14, p 1, showing parts in elevation. oneofwhich is shown in Figure 2. A shaft Figure 8 is an enlarged sectionalview 15' is journalled in each bearing sleeve 1 1.

taken upon the line IIIIII of Figure 2, The lower end of each shaft 15carries a crank 9 looking in the direction of the arrows. arm 16 whichhas a bifurcated outer end in Figure 4 is an enlarged sectional viewwhich a roller 17' is mounted. One crank taken upon the line I VIV ofFigure 3, with arm 16 and its roller 17 extend into a loop the upperportion of the mechanism broken formed by a U-shaped bracket 18 attachedaway. to the lower surface ofthe connecting piece It will be understoodthat the bucket 13 of the pair of paddles 11, as shown in Figloaderembodies an endless bucket chain ure2. The other crank armlG and itsroller which passes between; a pair of rotatable 17 extend through asimilar U-shaped drums or turrets which carry the material bracket 18attached upon the upper surface inwardly to the buckets from both sides.of the connecting portion 12 of the other pair 40 Only one of theturrets 0r drums has been of paddles 11. The upper end of each shaftillustrated, since they are both of the same 15 has rigidly securedthereon, a crankarm construction. Each drum or feeder embodies 19 whichcarries a roller 20 suitably mounted a lower disc 1 upon which acylindrical drum thereon. The rollers 20 are located in a cam 2 issecured. It will be noted that the disc 1 groove 21 which is formed in asuitable cam projects considerably beyond the periphery 22, which isrigidly secured against rotation of the drum in order to pick up thematerial on the hub 8a of the aforementioned housing, that is carried tothe bucket. The upper The operation ofthe aforedescribed mechamarginofthe drum 2 is in the form of a nism is as follows:

spider 20!. provided with a suitable hub 26 When the shaft 3 is rotated,the drum 2 ing the crank arms 16 therewith, While the rollers 20 of thecrank arms 19 rotate in the stationary cam groove, with the result thatthe paddles will be caused to reciprocate with respect to the drumduring such rotation. The cam 22 is so designed that the pad dles willbeprojected through the drum for carrying material to the bucket andwill be retracted into the drum justbefore the bucket 1 is encountered,in order to pass the same.

From the foregoing, it will be apparent that a novel feeding mechanismhas been provided which is designed to convey the material to thebuckets in a very positive and efii- 1 cient manner and in which theconveying paddles are so designed that they will be reciprocated in adirection away from the buckets so as not to strike or encounterithesame.

2 I amaware that many changes may be made and numerous details ofconstruction may be varied through a wine range without departing fromthe principles of this invention, and I, therefore, do'notpurpose limit-25 ing .the patent granted hereon otherwise than necessitated by theprior art.

I claim as my invention:

1. A bucket loading device comprising a rotatable disk, a drum securedupon said disk,

said drum having a plurality-of pairs of alined slots, a materialadvancing element extending through each pair of slots, theintermediateportions of said elements being reduced for'crossing-eachotherand means a forreciprocating said elements. I

2. In a bucket loader comprising an endless bucket chain, means forfeeding material tosaid hucketchain comprising a pair of rotatable diskshaving drums thereon, each 4 dru-In'having a plurality ofpairs of alinedslots, a material advancing element'projecting through-each pair ofslots and crossing each other and means for reciprocating said elements.

3. A bucket loading 'devicecomprising a rotatable disk, a drum-securedupon said disk, said drum having a pair of .alined slots, a materialadvancing element slidably extending throughsaid alined slots andmeansfor periodically reciprocating said element.

In testimony whereof I have hereunto subscribed my name at Aurora, KaneCounty,

Illinois.

HARRY H. BARBER.

